Helping BARON out are some of YOUTUBE’S top bassists from all over the globe, notably SANDBERG endorsers THOMAS “MARLOWEDK” RISELL (Denmark) and DAVID “DAVIDSINROCKS” CARACCIO (Switzerland), both of whom have the largest subscriber followings of any bassists on YouTube. Even WILL LEE of the “LATE SHOW WITH DAVID LETTERMAN” (New York) and GRAHAM MABY (JOE JACKSON, NATALIE MERCHANT) have been dropping by to try and stump viewers.